Method of manufacturing packings for rotating shafts



- C.STEENSTRUP METHOD OF MANUFACTURING PACKINGS FOR ROTATING SHAFTS Original Filed Feb. 24. 1920 Fig.9.

Inventor: Christlan Steenstrup,

Patent dune ea, ieea a ed ea anti cnars'rran schemes, or so r many, new roan, assrenoa 'ro I come, a coona'rron or vow-1:: Y

METHOD 01E MANUFAGTURING PACKIN GS FOR. ROTATIfiG- SHEETS. Application .filed February 24, 1920,8eria'l No. 360,980. Renewed Novemlier 1a, 1928,

To all uliom it may concern: the machine, pack against the adjacent wall Be it known that I, CHRISTIAN STEEN- through which the shaft 5 passes.

error, a citizen of the United States, resid- In accordance with the method shown in ing at Schenectady, in the county of Fig. 1, I take a strip of metal which is L 5 Schenectady, State of New York, have 1nshaped in section, one part forming the vented certain new and useful. limprovevthin-edged teeth 7 and the other part 8 ments in Methods of Manufacturing. Packforming engaging and spacing means, and

lugs for Rotating. Shafts, of which the fol- I wind the same spirally on sleeve 6 at the lowing is a specification. same time winding on top of part 8 a hold 10 l The present invention relates to packings ing piece or ribbon 9. The L-shaped strip such as are usedto prevent leakage between and the holding piece 9 may be wound on a rotating shaft and an adjacent wall sleeve 6 at the same time either manually I through which the shaft'passes and particuby means of a suitable windin machine, larly to packings of the type comprising a or by other, suitable means, an after heplurality of thin-edged annular teeth or mg wound thereon to form a packing memprojections which are carried by the rotating er of the desired length, the L-shaped strip member and pack "against the surface of the n h lding piece are fastened together and adjacent. wall, or which are carried by the 0 sleeve 6 by fusion of metal as by Welding wall and pack against the outer surface of r zing, orthe like, or by other suitab 20, the shaft. Packings of this character are means well known and are termed labyrinth or y e g g ng m n I O n cellular packings. a packing element which is very simple to Th bj t f th r t i v mi j t manufacture and in which the annular teeth provide an improved method qf -imanufac 7 m y be made RS together and as turing pachings f th t f d t thin as found desirable, the part of the L vhich is gconomical carry out, and Shaped Stl'lp wlnch fOl'lllS the thlH'QdgQd means of which a large number of thin- .teeill 7 ng fiflished t0 the desired thickedged annular teeth or projections may be HE S PIIOI to be 1n g wound on sleeve 6. provided in a comparatively shortspace. Instead l zmg l lI P Strip as A further object. of the invention is to q g- I 5 3 lltillzeft -shaped provide an improved method in which all p as shown n F g; and III this case the operations are of a simple character and I Preferably mm a P groove 10 in the may be carried out by the ordinary workolltel slllface f 6: after Whlch I d man without the use of special tools, wherei l 11 which 13 "ushaped in by highly skilled labor will not be required. F 9 Into gr at the Same time Wind- For a consideration of what I believe' to g a holdlng Q P 12 Q g of be novel and my invention, attention is dithe P pfi fh It in he piral rected to the accompanying description and g After belnig P9 l in piral th l i d d th t groove 10, U-shaped strip 11 and holding 40 In the accompanying'drawing, Fig. 1 is P y be S'llltfibly elded, brazed or a side elevation partly in section, of a Packotherwise fastened together and to sleeve 6.

i hg l t b d i my i ti d Referring now to Flg. 3 an arrangement Q'and 3 are si n lgr. iews of mgdifisimilar to that shown in 2 18 illustrated cations. R f t th d i 5 i h spiral grooves indicated at -13 is L-shaped except'that the strip which is wound in the ure indicates a section of s aft which may instead. of P in -section, the" be, for example, a section of the shaft of I F P making F Packin element f an elastic fluid turbine at about the point Flg. 3 1s exactly similar to t at just dewhere it asses through the turbine shell or ScrlbedlIl COIIIIBCEIOD Wltll i 2 5c casin shrin ries annular thi ed d eh Y hi h as i proved method in connection with the steps well understood, would, when uitably fixed on shaft 5, as by In'accordance with the provisioins'of the ng'thereon, is a sleeve 6 which carpa Statutes, I have descl'lbed y a n, ed in which it now prefer for carrying it out, but

' it will be understood that the specific steps described are only illustrative and that the method may be carried out by such steps as come within the terms of the appended claims.

What I claim as new and desire to secure Letters Patent of the United States, is

1. The method of manufacturing a packing element comprising a plurality of annular, radially extending prises taking a cylinder, winding on. one of its surfaces an angular stri and a holding piece, and fastening the strip and piece together'and to the cylinder.-

2. The method of manufacturing a packing element comprising a plurality of annular, radially extending teeth which comprises taking a cylinder, winding on one of its surfaces simultaneously, an angular strip and a holding ribbon, and then permanently fastening the strip, ribbon, and cylinder together.

3. The method of manufacturing a packing element comprising a plurality of annular, radially extending teeth which comprises taking a cylinder, cutting a continuous spirally extending groove in one of its surfaces, winding an angular strip in said groove, and fastening said strip to said cylinder.

4. The method of manufacturing a pack in element comprising a plurality of annu ar, radially extending teeth which comprises taking a cylinder, cutting a continuous, spirally extending groove in one of its surfaces, winding an angular stri and a holding piece simultaneously in sai groove, and fastening said strip, piece and cylinder together.

5. The method of manufacturing a packelement comprising a plurality of annular, radially extending teeth, which comprises taking a cylinder, spirally winding thereon simultaneously a U-shaped strip and a holding piece between the legs of said strip, and fastening said strip, piece, and cylinder together.

teeth which com- 6. The method of manufacturing a packing element comprising a plurality of annular, radially extending teeth which com prises taking a. cylinder, cutting a continuous, spirally extending groove in one of its surfaces, winding in said groove a strip and a holding ribbon located between the legs of said strlp, and fastening sai strip, ribbon and cylinder together.

U-shaped 7. The method of manufacturing a packfastening a continuous strip of thin metal edgewise in the groove.

9. The method of manufacturing a pack ing element which comp-rises providing a carrying member having a continuously extending groove in one of its surfaces, and fastening a continuous strip of thin metal edgewise in th roove by fusion of metal.

10. The method of manufacturing a packing element which comprises providing a carrying member having grooves in one of its surfaces, placing thin metal strip material edgewise in the grooves, fastening it therein in a temporary manner, and then permanently fastening it therein by fusion of metal.

11. The method of manufacturing a pack ing element which comprises providing a carrying member having a continuously extending groove in one of its surfaces, fastening a. strip of thin metal edgewise in said groov in a temporary manner, and then permanently fastening it therein by fusion of metal.

In witness whereof, I have hereunto set my hand this 20th day of February, 1920.

CHRISTIAN STEENSTRUP. 

